#app {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  background-color: skyblue;
}

.key_item{
  text-align: center;
  margin-right: 30px;
}

.key_name {
  margin-bottom: 10px;
  color: #555555;
  font-size: 16px;
  font-weight: 500;
}

.key_content {
  border: 1px solid #e7e7e7;
  color: #333;
  font-weight: 700;
  font-size: 20px;
  padding: 20px;
  background-color: #fff;
  box-shadow: 1px 1px 3px rgb(0 0 0 / 10%);
  border-radius: 10px;
}